Feed-water regulator.



No. 737,985. PATENTED SEPTA, 1903.

R. H. WHITE. v

FEED WATER REGULATOR.

APPLICATION FILED MAY 9, 1903.

NO MODEL.

UNTTED STATES Patented September 1, 1903.

PATENT OFFICE.

ROLLIN II. WHITE, OF CLEVELAND, OHIO, ASSIGNOR TO THE WHITE SEVV- INGMACHINE CO., OE CLEVELAND, OHIO, A CORPORATION OF OHIO.

FEED-WATER SSPECIFICATICN forming part of Letters Patent No. 737 ,985,dated September 1, 1903.

Application led May 9, 1903. Serial No. 156,353. (No`model.)

To f//ZZ 'zn/1,0m t may concern:

Be it knoWn that I, ROLLIN H. VHITE, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Feed-Water Regulators,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings.

This invention relates to feed-Water regnlators adapted especially forsteam-generators of the flasher' type, capable of being operated by thesteam-pressure in the generator for the purpose of controlling,r thequantity of i5 Water fed to said generator.

This invention is an improvement upon the regulator device which formsthe subject-matter of my application Serial No. 117,080, the objectbeing primarily to provide a device zo which is more sensitive to thevariations in the steam-pressure, and therefore more efficient in itsoperation, and one which Will be more durable and more easily kept ingood Working condition.

The invention may be here summarized as consisting in the constructionand combination of parts hereinafterdescribed, as pointed out definitelyin the claims.

In the drawings, Figure l is a central lon- 3o gitudinal section of aregulator embodying my invention. Fig. 2 is a transverse sectional viewin the plane of line 2 2, and Fig. 3 is a transverse sectional View inthe plane of line 3 3.

Referring to the parts by letters, A represents a valve-casing ofconvenient form, hav, ing in one end a valve-controlled inlet ct, intowhich Water may be pumped through a branch B of a pipe (not shown) whichleads to the 4o generator. The valve-casing has also an outlet d', fromWhich the Water Which is admitted through the inlet d escapes, and theWater so escaping may be conveyed through a suitable pipe, as C, eitherto the suction side 45 of the pump or to the Water-supply tank oranywhere else. The other end of the casing is closed by a cap-plate d2,Which clamps a flexible diaphragm D between itself and the end of thecasing. Between the cap-plate 5o and diaphragm is a chamber a3, whichwhen the device is connected up for use communicates freely with thesteam-space of the generator through port a4 by a pipe F. The other portd is for the purpose of connecting a pressure-gage--a convenience, butnot a necessity. A disk H lies in a rabbeted recess ci in contact withthe diaphragm D, the rabbeted recess being a little Wider than the diskis thick to permit the necessary movements. A compression coil-spring J,thrust- 6o ing atoneend against thisdisk and at the other against anadjustable disk G, opposes the pressure-induced movementofsaiddisk.Theconstruction and arrangement of the disk G and the means foradjustingit to vary the tension of the spring are as shown and describedin said prior application referred to, as indeed are all of the partsheretofore explained. A rod E is screwed into disk H and freely passesup through a cylindrical hole in the 7 0 disk G, the part whichA passesthrough said disk being triangular or of some other noncylindricalshape, so as to permit the passage of the Water. In the other end of thecasing is a transverse recess d6, which is closed at both ends by plugsK K. A lever M, pivoted to the casing, lies in this recess in contactwith the end of the rod E and With the inner end of the triangular steme of valve E'. The valve is conical and closes by movingin- 8o wardagainsta seat on valve-casing around the hole ct, through which thevalve -stem passes. Obviously the movements of rod E, induced by thesteam-actuated diaphragm, Will be multiplied by this lever, and as aresult this valve Will be opened wider by a given movement of thediaphragm than the valve shown in said prior application, Which isconnected directly With the disk H. This is of itself a 9o distinctadvantage, because there is less likelihood that any impurities in theWater may become jammed between the valve and its seat, and, moreover,the impurities are not so liable to scratch and score the valve oritsseat. Then, again, because the valve does open Wider it is possible tomake'the opening a smaller than with the prior construction, andtherefore the valve E may be smaller. If, therefore, this valve or itsseat become roo scored and scratched, permitting leakage, whereby itbecomes necessary to grind them from time to time, the smaller valve andseat may be the more easily ground, other things being equal. Thesmaller valve and seat will also be less expensive and may at slightinitial expense be made of nickel-steel, which is preferred, which willmost effectively resist the scratching action of the impurities in theWater, and, dually, since the valve E' is not connected With the lever Mit may turn and does turn in use, thereby not only preventing Wear inone place, but by turning upon its seat tending to grind ont thescratches from both valve and seat.

Having described my invention, I claim- 1. In a water-regulator, thecombination of a valvecasing having a water-inlet and a water-outlet, alongitudinally-movable rod, and means whereby the rod may be movedlengthwise by steam-pressure, with a valve for the water-inlet whichmoves inward to its seat and has a stein projecting into the casing, anda lever pivoted within the casing and engaging both with the valve-stemand with said rod, substantially as described.

2. In a Water-regulator, the combination of a valve-casing having awater-inlet a wateroutlet, and a steam inlet, a exible diaphragm betweenthe steam-inlet and Wateroutlet, a valve for the water-inlet, a leverfor operating said valve, and mechanism intermediate of said lever anddiaphragm, substantially as described.

3. The combination of a casing having a Water-inlet, a water-outlet, anda steam-inlet, with a liexible diaphragm secured across the casingbetween the steam-inlet and Wateroutlet, a longitudinally-movable rodadapted to be moved by said diaphragm, a valve for the Water-inlet, anda lever transmitting m0- ton from said rod to the stem of said valve.

4. In a water-regulator, the combination of a casing having aWater-inlet, a Water-outlet, and a transverse recess open at its end,plugs closing said ends, a lever in said recess pivoted to the casing, avalve for closing said water-inlet and having an inwardly-extended stemengaging with said lever, and means whereby steam-pressure may operatesaid 1ever, substantially as described.

In testimony whereof I hereunto alx my signature in the presence of twowitnesses.

ROLLIN II. WHITE.

Witnesses:

E. B. GILCHRIST, E. L. THURsToN.

